Brief Answer:
This requires examination by your doctor.

Detailed Answer:

Hi
Welcome to Health care Magic.

I am Dr. Shama and I will be answering your question.

The symptoms suggested by you in the form of circular skin blotch of the right breast can be caused by wide range of conditions.

The common causes I would like to rule out are
Inflammatory conditions of breast called as mastitis
Dermatitis of skin of breast caused by infections
Benign conditions of breast like mammary gland hyperplasia
Premalignant causes like Pagets disese

Since this is of recent onset it can be most likely dermatitis.
However because of your age this should not be neglected.

Hence I advice you to go for examination by a surgeon or a skin specialist to find out the underlying cause and treatment accordingly


Hope this answers your question.

Please do write back to me with examination reports and further questions.

Thank you

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